public class test {
    public static void main(String[] args) {
        System.out.println("编写交换整数，至少了两种方法");
        int a = 10;
        int b = 12;
        a = a ^ b;
        b = a ^ b;
        a = a ^ b;
        System.out.println(a);
        System.out.println(b);

    }
}
